Abstract

Production of copepods in a 3000 litre capacity outdoor mass culture tank has been studied by periodical sampling. The culture was maintained by fertilizing the filtered sea water using cowdung, groundnut oil cake, Super Phosphate and Urea in the ratio 8 0 : 1 0 : 1 : 1 to enhance the phytoplankton production and thereby that of the grazers. The change in the hydrological parameters
due to evaporation, or dilution due to rain has been correlated to the trend in the production of the
species belonging to the genera Cyclops, Oithona and Pseudodiaptomus.